Jeff,

Most discones [mine is the Diamond] come with 2 "U" bolts in the
mounting kit that can be clamped around an outdoor television antenna
mast. If you are planning on an outdoor/roof mount and do not have an
antenna mast, here is my suggestion.

Look in your phone book for a company that sells chain-link fencing or
just go to Home Depot, if there is one in your town. I joined two,
10'lengths of fence mast together and then got two electrical conduit
clamps that fit the diameter of the pipe [from Home Depot] and fastened
them to the patio overhang.

Since we get some 70+ MPH winds here, I've had to guy wire the masts to
the patio roof so the antenna doesn't fly away! All you need now is to
get some 9913 coax cable, run it to your scanner and you're in business.

If you are planning to mount the discone in your attic [because of an
HOA problem] someone here will give more details on that type of install.

All The Best!

Alain...Palomar Mountain [where the 200" Hale telescope is]